F245 Encoder 2 Failure: Quadrant Error - REXROTH ECODRIVE03 Troubleshooting Manual

4-10
Description of Diagnostic Messages F... and E...

F245 Encoder 2 failure: quadrant error

Permissible signal amplitudes for sine and cosine signals
15
10
5
minimum pointer length > 5.0 or 1.0 V
0
nominal pointer length (9.2 V)
-5
-10
-15
-15 -10
=non-permissible range
Fig. 4-3: Correct signal amplitude
Note: When an incremental encoder with square-wave signals is
used, the signals are not monitored.
Example:
Ucos = -6.5V
Usin = 6.5V
( )
pointer length = - 6.5V
Remedy:
1. Check the measuring system cable.
1. Check the measuring system.
2. In the case of linear measuring systems, check the mounting of
the measuring head.
The evaluation of the additional optional encoder (encoder 2) is active. In
the evaluation of the sinusoidal input signals of the optional encoder, a
plausibility check is performed between these signals and the counter fed
by these signals. Doing this, an error has been encountered.
Cause:
1. Defective encoder cable
2. Disruptive electro-magnetic interference on the encoder cable
3. Defective encoder interface
ECODRIVE03-SGP-03VRS
maximum pointer length > 11.8 V
-5 0
sine signal amplitude
2
2
+ 6.5V » 9.2V
DOK-ECODR3-SGP-03VRS**-WA01-EN-P
5 10 15
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